Looking for high quality A2FM piston rings for your Rexroth hydraulic pump? Our durable hydraulic pump piston rings are fully compatible with original A2FM models. Made from wear resistant materials, these piston rings deliver long service life under high pressure and temperature. Ideal for rebuilds, repairs, or preventive maintenance, they ensure a precise fit and reliable sealing performance in demanding hydraulic systems.
| Item | Model No. | Description | Outer ΦS (mm) | Inner ΦD (mm) | Thickness L (mm) | Shift B (mm) |
|---|---|---|---|---|---|---|
| 1 | A2FM10 | Piston Ring | 9 | 8.05 | 1.2 | 0.35 |
| 2 | A2FM12 | Piston Ring | 9.7 | 8.7 | 1.4 | 0.45 |
| 3 | A2FM16 | Piston Ring | 11.2 | 10 | 1.4 | 0.45 |
| 4 | A2FM23 | Piston Ring | 12 | 10.8 | 1.8 | 0.6 |
| 5 | A2FM28 | Piston Ring | 13.3 | 11.9 | 1.8 | 0.6 |
| 6 | A2FM32 | Piston Ring | 14.2 | 12.8 | 1.8 | 0.6 |
| 7 | A2FM45 | Piston Ring | 16.0 | 14.4 | 2.0 | 0.6 |
| 8 | A2FM56 | Piston Ring | 16.8 | 15.0 | 2.3 | 0.7 |
| 9 | A2FM63 | Piston Ring | 17.8 | 16.0 | 2.3 | 0.7 |
| 10 | A2FM80 | Piston Ring | 18.9 | 16.9 | 2.5 | 0.8 |
| 11 | A2FM90 | Piston Ring | 20.0 | 18.0 | 2.5 | 0.8 |
| 12 | A2FM107 | Piston Ring | 20.6 | 18.4 | 2.8 | 0.9 |
| 13 | A2FM125 | Piston Ring | 22.3 | 20.1 | 2.8 | 0.9 |
| 14 | A2FM160 | Piston Ring | 23.6 | 21.1 | 3.2 | 1.0 |
| 15 | A2FM180 | Piston Ring | 25.0 | 22.5 | 3.2 | 1.0 |
| 16 | A2FM250 | Piston Ring | 32.0 | 29.0 | 3.2 | 1.25 |
Why Choose Our Hydraulic Pump Piston Rings?
Our piston rings are designed for reliable performance and perfect fit in a wide range of hydraulic pumps, including Bosch Rexroth A2FM series. Made with wear-resistant materials, each hydraulic pump piston ring ensures long-lasting sealing, smooth motion, and high temperature tolerance for demanding industrial use.
Full Range of A2FM Piston Ring Sizes
We offer a complete selection of A2FM piston ring sizes—from A2FM10 to A2FM250—engineered to match OEM specifications. Whether you're rebuilding a pump or replacing worn parts, our piston rings are 100% interchangeable and trusted by customers worldwide.
Need Help Finding the Right Piston Ring?
Not sure which hydraulic piston ring fits your model? Just send us your pump model, size, or a photo of the old ring—we'll help you find the correct part quickly. Our team is here to support your maintenance and repair with expert guidance and fast global delivery.